【题目】It was some time before the door opened ________ his ring.
A.on account ofB.in view ofC.with regard toD.in response to
在线课程【答案】D
【解析】
考查介词短语辨析。句意：他按门铃后过了一段时间，门才打开。A. on account of 因为，由于；B. in view of 考虑到，鉴于；C. with regard to 关于，对于；D. in response to 回应。开门是对他按门铃的回应，因此选择in response to合乎句意的需要。故选D 。